Because the All-Star selection process isn't an exact science, there's plenty of room for error on the part of the fans. Expecting a pool of partisan voters to get the best pitchers into the game is bound to leave some deserving hurlers out in the cold.

Here are a few pitchers who can make a legitimate claim that they should be pitching in New York.

Grant Balfour, Oakland Athletics

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Tossing aside all advanced metrics and other stats, a closer's job is to close out games. Nobody has done that more efficiently this season than Oakland Athletics closer Grant Balfour.

The 35-year-old Australian native has been 22-of-22 on save opportunities and is the only closer who has converted every single save opportunity thrown his way this season.

Aside from being the best at doing his job this season, Balfour has the stats to warrant a roster spot. He sports a WHIP of 1.10 and an ERA of 1.82. Considering that American League All-Star reliever Mariano Rivera posted a WHIP of 1.21 and ERA of 1.39, those two are close statistically.

To top it all off, Balfour has set a club record for consecutive saves, according to ESPN Stats & Info:

Yes, Francisco Liriano missed an entire month of the season, but he's one of the best pitchers in baseball right now.

If he had enough innings pitched to qualify as a league leader, he would be among the elite in nearly every statistical category. The lefty has an ERA of 2.20, which would be third in the National League.

The 8-3 Liriano has posted an impressive 9.56 K/9 ratio, placing him fourth among National League pitchers.

Liriano's exclusion is somewhat understandable because of his lack of innings, but his numbers are good enough for him to have a legitimate gripe about being left off the roster.

Greg Holland, Kansas City Royals

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With all due respect to catcher Salvador Perez and the season he has had for Kansas City, there's no way that he should have been the team's All-Star representative over closer Greg Holland.

Holland is one of the few bright spots on an otherwise struggling team, which isn't the best place for a closer to be. But he has shined in the role.

The 27-year-old rocks an ERA of 1.97 and has capitalized on 19-of-21 save opportunities while posting a K/9 ratio of 14.9—a number that is only topped by Cincinnati Reds flamethrower Aroldis Chapman.

Playing in the oft-overlooked Royals organization, Holland was bound to be neglected by fans, but few pitchers have better numbers.